Untitled

Multidimensinal array handing in PHP
aid (albumid)    |    sid (songid)    |    rid (artistid)
_________________|____________________|___________________

5001             |    track-a         |    a
5002             |    track-a         |    c
5001             |    track-a         |    a:b
5001             |    track-a         |    b
5001             |    track-a         |    b:c
5001             |    track-b         |    b
5001             |    track-b         |    b:a

$track is array of track
$artist is array of artist (for artist combination array value may have ":", I have taken it as string.)
//SELECT QUERY FOR ALBUM
if (mysql_num_rows($sql) != 0) {
        while ($row = mysql_fetch_assoc($sql)) {
            $album_array[] = array( $row["sid"], $row["rid"]);
        }
    for ($z = 0; $z < count($track); $z++) {
    if( in_array($track["z"],$album_array[0]) && empty(array_diff(explode(":",$album_array[1]), explode(":",$artist["z"]) )) ){
       echo 'true';
    } else {
       echo 'false';
    }
}

} else {
 //SIMPLE INSERT CODE HERE
}

track-a    |    a
  track-a    |    b
  track-a    |    b:a
  track-a    |    a:c

-TRUE
-TRUE
-TRUE
-FALSE

$track["z"] and $artist["z"]

$track[$z] and $artist[$z]